Anticollision device.



A. WALKER.

ANTICOLLISION DEVICE.

APPLICATION FILED DB0.23,1907.

Patented Dec. 1, 1908.

UNITED entras LATENT- OFFICE y JECAN DER WALKER,- OFv RENDRE, KENTUCKY, A SSIGOR OF .ON E-HALF-TO F. T..WALK ER,

OFI'HARTFORD, KENTUCKY.

specification of Letters Patent.

Patented Dec. 1, 1190s.'

Application filed December 23, 1907. Serial No. 407,806. l

I a citizen vof theA Unitedl States, residing at tion.

Render, in the county of Ohio and State of Kentucky, have invented certain'new and 'useful Improvements in Ant-icollision Dev ices, of which the followingis a specifica- My invention relates to anti-collision devices and particularly contemplates the provision of suitable mechanism in the form of blocks whereby a train within the same will be protected in front and behind and will cause a second train entering either end of the block to be stopped. l

My invention specifically resides in the following features of'construction, arrangement and operation to be hereinafter described with reference to the accompanying drawings,-r`orming a part of this specitication,

in which like'numerals arey used'to designatelike plarts throughout the several'iigur'es, and 1n W ich- Figure 1 is a plan view of a railway track provided with my improved actuating mechanisnnli1 ig. 2 is a diagrammatic elevation of a portion of an-engine illustrating the application in a relative position of my improved operatingmechanism, Fig. 3 is aside elevation of 'the track and locomotive thereon provided with my improvements, and Fig. 4 1s a detail elevation partly in section-of one of the actuating levers and its mounting in connections beside the rails.

.inthe practical embodiment of my invention I preferably provide an engine A with an operating lever 5 pivot-ally'mounted upon the right side of the engine 'cab B and adapted to be struck and moved,"to operate a suitable mechanism carried by the engine for closing the throttle and setting, the air.-

ln Fig. 4 'l have shown vor 6 adapted to strike and move v the operating lever 5, comprising a vertical bar having an upper angular' end 7 andbeing suitably mounted in bearings 9 having asprocket 10 engaging a chain 11 upon the end of an actuating rope orcable 12 leading preferably through a box conduit 13 beneath `the surface of the soil at the sides of` the tracks.

' Referring now to Fig, 1, an actuating lever 6 is mounted as described| at each end of the.

blockC and ats-opposite sides 'of the rails D. Tripping levers 14 are connected to their re- Vmuch I thus the b ook against the danger of the encroachropes or cables 12, and are mounted simull thereto intermediate and at thelopposite end, of the block, said. tripping taneously levers being adapted toswing said'actuatingl lever 6 by-means of their connection, and in such. manner 'that said actuating lever 6 is parallel with the .rails when the trippingvlevers 14 are at right angles thereto and vice versa. Thus, when a train approaches in the` direction indicated bv the arrow O, the first tripping lever 14 will be struckand moved*A in t direction indicated by its arrow thus moving the other tripping lever 14 as indicat-ed by its arrow and pulling `the rope.or cable 12 as indicated aty15, thus throwing the actuating lever 6 at right angles to the lever'5 of au engine a preaching in the direcle struck. However, if a train approaching .in the direction ofthef arrow O continues through-'the blockC and' no train approaches inthe direction indi-y cated by the arrow X, said first train will, of course, knock the lever 6 away without any actuation of. the engine mechanism, inasas said lever 6 is at the left hand sideof the same. A train' approaching in the di rection indicated by the arrow X will similarly actuate the actuating lever 6 at the opposite end ofthe block C through tripping levers 16, a'nd further said train 4when ar` rived centrally of the block will strike the intermediate tripping lever 14 and will throw the operating leverl 6 corresponding thereto, at right angles to the rails at its rear, rotecting both front and rear ends of ment of other trains'. l

4The .operatingv mechanism' carried by lthe engine includes the throttle lever E and the air-release lever F, both having connection by a rod 17 with the piston head within the small steam ,cylinder 18- located probably upon the engine boiler just outside the cab. The operating lever 5 has connection by con,- nectingrods 19 and a bell-oranklever 20 with a valve or `its equivalent 21 within the steam pipe-leading from the throttle valve within the dome G, said valve when open, by the actuation of said lever 5 admitting steam from said steam pipe into a pipe 22 leading to the cylinder 1.8 infront ot' the piston head therein, .thus forcing said piston head rearwardly therein, carrying the rod 17 and sirail and in such position that the operating' l i brought multaneously` closing the vthrottle lever E vand releasing the air lever l the blocksv of .which throttle 'and .air levers l be released for their normal actuation byV a cylinder 18. s l

Having thus uily descrlbed my invention, I claim:

1. In a device of the character described,- the combination with .a track bloclr` system, comprise actuating levers mounted at4 opposite ends thereof, and on opposite sides of the said tracks, end tripping levers mounted at opposite ends ci the' lock and.' on or posite sides ci the tracks to said actuating evers, and intermediate tripping .levers mounted midway of the block and onopposite sides oi the tracss to one another, one of said end tripping levers and one of said intermediate tripping levers being connected to each of said actuating levers, in such .manner as to set the latter when' either of the former are struck by. a locomov tive, of va 'mechanism'carried by av iocomotive for effecting the automatic stop agethereof andi'ncludmg an operating ever mounted lupon one side o" the said locomotive,and adapted to be struck bytliegsaid actuatin levers when' set, substantially. as describe 2. ln a Adevice of the character described, the combination withv a track block system, the blocks of which comprise actuating levers mounted ato post'e ends thereof, and -on' opposite sides o the said tracks, end tri ping levers mounted at opposite vends of t e lock and on opposite sides of the tracks"to F, '.Ihus, upon such actuation, the train' hev quickly tol a standstiii as is readily ap 'arentv and hen the'danger is past and it is esired "'jto again proceed, the

,LE and F- may the sai v lever -23 pivotaliy mounted Within the cab B and operating toopena vvalve -24 to relieve the pressure Within the tive in almement including an `oi'oermting lever mounted upon one side of the said locomotive, and adapted to be struck by the saidactuating lcvers when set, substantially as described.

3. In a device of the character described, the combinationwith the tra-cir ylevers,lcf e mechanism-carried by a locomotive for c tfecting the automatic stoppage ci' 'the same, said mechanism comprising a steam cyiinder', a piston Working therein, andl having its rod connected to they air brake and'thro'ttle le-I vers, a ipe ieading 'from the steam dome into sai cylinderin front said piston and yprovided With a valve within said dome, e,

ever mounted upon one side of said1ocomo nections between said lever and said steam ipe valve for.v opening the ever isstruck,'fiaid cylinder being provided with said track levers, conn same when saidV midway of the stockV With e valve tnercin and a leverlooated -in the locomotive cahand having connection with said valve for operating the same to relieve the pressure when desired, substantialljyT as'descri ed.1

In testimony whereof aiiix my signature in presence of two 1Witnesses.

ALEULNDER- WALKER. Witnesses :i

Tuonms Lan,

Leitrim Erinnern 

